<template>
 
 <el-container>
  <el-header>Header</el-header>
  <el-main>Main</el-main>
</el-container>



</template>
<style>
  .el-header, .el-footer {
    background-color: #B3C0D1;
    color: #333;
    text-align: center;
    line-height: 60px;
     width: 1000px;
     margin-left: 35%;
     margin-top: -55px;
  }
  
  .el-aside {
    background-color: #D3DCE6;
    color: #333; 
    text-align: center;
    line-height: 200px;
     width: 800px;
     margin-left: 35%;
     margin-top: -50px;
  }
  
  .el-main {
    background-color: #E9EEF3;
    color: #333;
    text-align: center;
    line-height: 700px;
      width: 1000px;
       margin-left: 35%;
       
  }
  
  body > .el-container {
    margin-bottom: 40px;
  }
  
  .el-container:nth-child(5) .el-aside,
  .el-container:nth-child(6) .el-aside {
    line-height: 260px;
  }
  
  .el-container:nth-child(7) .el-aside {
    line-height: 320px;
  }
</style>
